Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Apr. 03, 2021	Jan. 02, 2021
Statement Of Financial Position [Abstract]
Allowance for credit losses, accounts receivable	$ 1,453	$ 1,493
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	2,000	2,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	32,226,000	32,121,000
Common stock, shares outstanding	32,226,000	32,121,000